Brittle Star Movement (image) Brown University Share Print E-Mail Caption The brittle star doesn't turn as most animals do. It simply designates another of its five limbs as its new front and continues moving forward. Credit Henry Astley/Brown University Usage Restrictions Credit required Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.